FAN53745
FAN53745 is Buck Regulator manufactured by onsemi.
Buck Regulator, Synchronous, 3.33 MHz, 1 A
Description The FAN53745 is a low quiescent current step- down DC/DC converter that delivers a regulated output voltage from an input supply of 2.3 V to 5.5 V. The bination of built- in power transistors, synchronous rectification, and a tiny solution size make the device ideal for portable applications.
The converter normally operates in PWM Mode at a typical fixed- frequency of 3.33 MHz. At moderate and light loads, the device will transition into PFM Mode to maintain high efficiency and excellent transient response. Additionally, a low power Shutdown Mode reduces power consumption when the device is disabled.
The FAN53745 is available in 6- bump, 0.4 mm pitch, Wafer- Level Chip- Scale Package (WLCSP).
Features
- Proprietary Current Mode Architecture
- Wide Input Voltage Range: 2.3 V to 5.5 V
- 1 A Load Capability
- PFM / PWM Modes for High Efficiency
- I2C- patible Interface
- Programmable Output Voltage: 1.5 V to 3.3 V
- Programmable Current Limit: 440 m A to 2090 m A
- Internal Soft- Start
- Protection Faults
(OT, Input UVLO, Output Short and Reverse Current)
- Automatic Pass- Through Operation
- Hardware Reset when Holding SCL Low
- Pb- Free and Ro HS pliant
Applications
- Smart Phones
- Smart Watch
- Health Monitoring
- Sensor Drive
- Energy Harvesting
- Utility and Safety Modules
- RF Modules
DATA SHEET .onsemi.
WLCSP6 CASE 567UH
MARKING DIAGRAM
12KK...
